/*
 * The contents of this file are subject to the Mozilla Public License
 * Version 1.1 (the "License"); you may not use this file except in
 * compliance with the License. You may obtain a copy of the License at
 * http://www.mozilla.org/MPL/
 *
 * Software distributed under the License is distributed on an "AS IS"
 * basis, WITHOUT WARRANTY OF ANY KIND, either express or implied. See the
 * License for the specific language governing rights and limitations
 * under the License.
 * 
 * The Original Code is iSQL-Viewer, A Mutli-Platform Database Tool.
 *
 * The Initial Developer of the Original Code is iSQL-Viewer, A Mutli-Platform Database Tool.
 * Portions created by Mark A. Kobold are Copyright (C) 2000-2007. All Rights Reserved.
 *
 * Contributor(s): 
 *  Mark A. Kobold [mkobold <at> isqlviewer <dot> com].
 *  
 * If you didn't download this code from the following link, you should check
 * if you aren't using an obsolete version: http://www.isqlviewer.com
 */
package org.isqlviewer.swing.outline;

import java.util.EventObject;

import javax.swing.CellEditor;
import javax.swing.event.CellEditorListener;
import javax.swing.event.ChangeEvent;
import javax.swing.event.EventListenerList;

/**
 * TODO Add AbstractCellEditor Object overview JavaDoc information.
 * <p>
 * 
 * @author Mark A. Kobold
 * @version 1.0
 */
public class AbstractCellEditor implements CellEditor {

    protected EventListenerList listenerList = new EventListenerList();

    public Object getCellEditorValue() {

        return null;
    }

    public boolean isCellEditable(EventObject e) {

        return true;
    }

    public boolean shouldSelectCell(EventObject anEvent) {

        return false;
    }

    public boolean stopCellEditing() {

        return true;
    }

    public void cancelCellEditing() {

    }

    public void addCellEditorListener(CellEditorListener l) {

        listenerList.add(CellEditorListener.class, l);
    }

    public void removeCellEditorListener(CellEditorListener l) {

        listenerList.remove(CellEditorListener.class, l);
    }

    /*
     * Notify all listeners that have registered interest for notification on this event type.
     * 
     * @see EventListenerList
     */
    protected void fireEditingStopped() {

        // Guaranteed to return a non-null array
        Object[] listeners = listenerList.getListenerList();
        // Process the listeners last to first, notifying
        // those that are interested in this event
        for (int i = listeners.length - 2; i >= 0; i -= 2) {
            if (listeners[i] == CellEditorListener.class) {
                ((CellEditorListener) listeners[i + 1]).editingStopped(new ChangeEvent(this));
            }
        }
    }

    /*
     * Notify all listeners that have registered interest for notification on this event type.
     * 
     * @see EventListenerList
     */
    protected void fireEditingCanceled() {

        // Guaranteed to return a non-null array
        Object[] listeners = listenerList.getListenerList();
        // Process the listeners last to first, notifying
        // those that are interested in this event
        for (int i = listeners.length - 2; i >= 0; i -= 2) {
            if (listeners[i] == CellEditorListener.class) {
                ((CellEditorListener) listeners[i + 1]).editingCanceled(new ChangeEvent(this));
            }
        }
    }
}
